Koskamo

Appside MCP

A public MCP server operated by Appside that allows coding agents to search developer documentation, retrieve SDK examples for various platforms, read published pricing information, and list or search for apps and games in the Appside catalog without requiring an account or API keys.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Appside MCP logo, by AppsideVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by Appside
You need:No account, API key or payment credentials are required.
MCP endpoint (Streamable HTTP)
https://appside.build/mcp
Vendor documentation

What you can do with it

  • Search developer documentation for specific topics like webhooks
  • Retrieve SDK examples and verification status for supported platforms
  • Read published pricing and fee structures
  • List or search for apps and games in the public catalog

Source and maintenance

Vendor evidenceRegistry 0.2.0

Protocol and capabilities

Server
appside-mcp 0.2.0
MCP protocol
2025-03-26
Tools
8 advertised
Resources
1 advertised
Resource templates
0 advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {},
  "resources": {}
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Read-only docs plus app catalog registration. Any coding agent may list an app it built with register_app, publish its ownership token, and call verify_app. Use get_app and search_apps for verified listings. No Appside account or store required. Pending entries expire in 14 days. SDK snippets retain test-mode and verification status. Never grant items from client callbacks.

Tools

8 advertised

search_docs
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search Appside public developer Markdown; returns source links and excerpts.

search_docs input schema
{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1
    }
  },
  "additionalProperties": false
}
search_docs annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_sdk_snippet
Advertised by the server during the last successful anonymous check.
Advertised read-only

Get a repository SDK example and its documented verification status. Grant items only on verified backend delivery.

get_sdk_snippet input schema
{
  "type": "object",
  "required": [
    "platform"
  ],
  "properties": {
    "platform": {
      "enum": [
        "web",
        "ios",
        "android",
        "unity",
        "react-native",
        "flutter",
        "node",
        "python"
      ],
      "type": "string"
    }
  },
  "additionalProperties": false
}
get_sdk_snippet annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_sdk_status
Advertised by the server during the last successful anonymous check.
Advertised read-only

List all SDK download URLs, install instructions and scoped verification status, or select one platform. All SDKs operate in test mode.

get_sdk_status input schema
{
  "type": "object",
  "properties": {
    "platform": {
      "enum": [
        "web",
        "ios",
        "android",
        "unity",
        "react-native",
        "flutter",
        "node",
        "python"
      ],
      "type": "string"
    }
  },
  "additionalProperties": false
}
get_sdk_status annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_pricing
Advertised by the server during the last successful anonymous check.
Advertised read-only

Get Appside published payment fee and fixed-fee policy.

get_pricing input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
get_pricing annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
register_app
Advertised by the server during the last successful anonymous check.
Open-world

List any app or game you built in the Appside public app catalog. No Appside store or account required. Supply plain-text metadata and your website or exact https://<account>.itch.io/<game> page (or App Store/Google Play listing for a store-only app). Returns an id and ownership token; publish the token then call verify_app. Nothing is public until verified; pending entries expire after 14 days.

register_app input schema
{
  "type": "object",
  "required": [
    "name",
    "description",
    "category",
    "platforms"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "HTTPS app website on a domain you control, or the exact game page on your own itch.io subdomain. Each itch game path is a separate identity. Omit only for store-only apps."
    },
    "name": {
      "type": "string",
      "maxLength": 60,
      "minLength": 1
    },
    "category": {
      "enum": [
        "game",
        "productivity",
        "education",
        "entertainment",
        "health",
        "finance",
        "social",
        "other"
      ],
      "type": "string"
    },
    "platforms": {
      "type": "array",
      "items": {
        "enum": [
          "web",
          "ios",
          "android",
          "windows",
          "macos",
          "linux"
        ],
        "type": "string"
      },
      "maxItems": 6,
      "minItems": 1,
      "uniqueItems": true
    },
    "appStoreUrl": {
      "type": "string"
    },
    "description": {
      "type": "string",
      "maxLength": 300,
      "minLength": 25
    },
    "webBuildUrl": {
      "type": "string",
      "description": "HTTPS playable build on your verified hostname, an itch game page, or https://itch.io/embed-upload/<id>; itch game pages resolve to the browser upload at verification; click-to-load sandboxed Play."
    },
    "contactEmail": {
      "type": "string",
      "maxLength": 254,
      "description": "Optional private contact, never shown publicly."
    },
    "playStoreUrl": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
register_app annotations
{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}
verify_app
Advertised by the server during the last successful anonymous check.
Open-world

Verify a pending registration after publishing the returned token at /.well-known/appside-verify.txt or in a meta name="appside-verify" content="TOKEN" tag on the submitted website. For itch.io, put the token anywhere in the public text of the exact submitted game page (edit its description). Store-only apps put the token in every submitted public store description. Success makes the catalog page searchable and indexable.

verify_app input schema
{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "maxLength": 100
    }
  },
  "additionalProperties": false
}
verify_app annotations
{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
get_app
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Get a verified public app by registration id or slug. Pending, expired or moderated listings are not returned; no private contacts or verification tokens are exposed.

get_app input schema
{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "maxLength": 100
    }
  },
  "additionalProperties": false
}
get_app annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
search_apps
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Search verified public apps and games by text, category or playable web build. Pending, expired and moderated listings are excluded.

search_apps input schema
{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 100,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 200
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    },
    "category": {
      "enum": [
        "game",
        "productivity",
        "education",
        "entertainment",
        "health",
        "finance",
        "social",
        "other"
      ],
      "type": "string"
    },
    "playable": {
      "type": "boolean"
    }
  },
  "additionalProperties": false
}
search_apps annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

Appside llms.txt

Advertised by the server during the last successful anonymous check.

Public Appside overview for coding agents

Appside llms.txt URI
https://appside.build/llms.txt

MIME type: text/plain

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
1727 ms
95th percentile latency
1727 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 1727 ms · metadata changed · 8 tool(s), 1 resource(s), 0 resource template(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http appside-mcp https://appside.build/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add appside-mcp --url https://appside.build/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable appside-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "appside-mcp": {
      "url": "https://appside.build/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "appside-mcp": {
      "type": "streamableHttp",
      "url": "https://appside.build/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start appside-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "appside-mcp": {
      "type": "http",
      "url": "https://appside.build/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http appside-mcp https://appside.build/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "appside-mcp": {
      "url": "https://appside.build/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "appside-mcp": {
      "serverUrl": "https://appside.build/mcp"
    }
  }
}

Let your agent find its tools

Find servers like Appside MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Do you run Appside MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing